etymological
adj. 词源的；词源学的
例句
"Gratification" and "gratitude" have the same etymological root.
gratification和gratitude有相同的词源。
《柯林斯英汉双解大词典》
Highly attuned to the etymological prehistory of the English word infant.
协调了初期英语的史前语源学。
Still, the other etymological sources I checked seemed to agree with the OED.
即便如此，我查阅的其他资料似乎与OED吻合。
